Magnetic rotational spectroscopy is based on the use of magnetic micron-size wires for viscosity measurements. Submitted to a rotational magnetic field with increasing frequency, the wires undergo a hydrodynamic instability between a synchronous and an asynchronous regime. From a comparison between predictions and experiments, the static shear viscosity and elastic modulus of wormlike micellar solutions are here determined. The values agree with the determination by cone-and-plate rheometry.
@article{arxiv.1609.05888,
title = {Microrheology of viscoelastic solutions studied by magnetic rotational spectroscopy},
author = {Jean-François Berret},
journal= {arXiv preprint arXiv:1609.05888},
year = {2021}
}
Comments
6 pages, 4 figures, proceedings of the TNT2015 conference in Toulouse